Antiskid device



July 26, 1949. v H. J. EISENHAUER, SR 2,477,051

ANTISKID DEVICE ATTORN EYS.

ANTISKID DEVICE Filed Aug. 20, 1548 5 SheetLs-Sheet 2- iNVENTOR.

July 26, 1949. H. 1. EISENHAUER, sR 2,477,051

ANTISKID DEVICE Filed Aug. 20, 1948 SVSheets-Sheetv' 44 #any J [Ae/Mauer@ BY @wvM/VQM.

ATTORN EYS.

Patented July 26, 1949 UNITED' STATES PATENT FICEy n Y 2,477,051 v Y AN'ISKID EVIC v Harry J. Eisenhauer, Sr.,Y ufal'o, Y.- Y Application August 2o, 194s-, Serial N6. 5222" (c1. 15a-e225) 9 Claims. 1

My invention relates iin general to anti-skid devices, and particularly to' anti-skid device having a plurality of arms which are retractable into` engagement withv the'tir'e of an automobile.

The principal object of my" invention is to' provide a device Whichniay be readily applied to' an. automobile tire Without having to' jack upv the wheel.

Another object has been to provide a device which maybe applied to' the tire Without the use of any tools.

.A` further object is to providea device having tire engaging members sov shaped that Whenl applied andv clamped in position Will provide sharp, road engaging anti-sind- Surfaces.

Moreover, my device is" collapsible so' to occupy relatively smalllspace-vvl'ilen not in use.

The above objects' and advantages have been' accomplished by the device' shown inthe accom'- pa'nying drawings, of. which: K

Fig. 1 is a sectional elevation of. my device as applied to an automobile-Wheel and tire;

Fig. 2 is a face vew'thereei;

Fig. 3 is' a fragmentary sectional vievf oi? a modified formi of my device;` and,

Fig. 4` is a similar View of another. modified form of structure.- A

The form of my' inventlen shown in' Figs. 1 and 27 compr-HSS ai llrallty (ifv tie-engaging members IU. Eachlof these members ispreferably fI U-Shaped form hafi'g ail DV aIrI'n. l I and; al'- tire arm lf2 connected together by means of a' road-engaging portion` I3'. As shown in Figi.` il, when in position the'1 tire arm' Will engage the rear face of the tire; the roadeeng'aging portieri'y I3- will extend across the treadof the tire', and the pivot' arm |-I will extend radiall'y'tovard the axisof the Wheel.VA

Each of the pivcti arrr'is" I I is1 hingedly attacled. at I4 to' a connecting erin l5'. These connecting arms radiate towardthe center of the vvlieel Where they are pivotally united to' a cl'arlnpingVv member I6. This clamping member is prefer"- ably in the form of a disc having a centrally arranged sereW-tliread'edhub 2U for the reception of a clamping screWZ I'.- Actnatingm'eans, preferably in the forml df ai handlwheel`` 22', is secured to the outer end of the" Screwl whereby tl'ie sanlie'lA may be readily rota-tedv by hand'.-

The clamping!screvvy 2|, whenv in` position, has its axis' substantially'withtlie aXis of the Wheel? axle, and its inner endl entends invvardly tovvard' the wheel hub 23; ".Flleinner'e'ncl of the screw is` provided' with aswivel: portion 24" rotatablyv mounted Within an' abutment sleeve2'5, and it is lieleiazgainst einer movement tnerewltli by means of a swivel e'iiplingf zsserevvhtliifeaded tea projection 30 foir'ne'd o'n'th'e slev'eL- By means of this swivel arrangementgtne abutment' sleeve andeiafnping screw will be y maintained iii eeaieai reiatioigwl-nle at the saine time perm-ittiiig free swiveling movement ef' screw abutmefitvfitniiirtliesleeve; Y

is shown iii l 2`f, tiie abiitnient sleeve 2e is@ designed te' engage the hlllz?.v ofthe automobile Wheel am lol lieve its end well. 3l lightly engaged Wtllli ndi f the axle of the Wheel or axle 311. Wlillel havevsnwn a sleeve for: engaging a-vvneel hub, if; isf obvious' that the abltiieillt may be" made' in: anyu suitable shape tok actuelle difleifeteine er'wlieel constructions. it only lbeing eesiapie me; abutment be substantially centi-elise@ by" its eiigagermeiit with the Wheel or agile pait'- andleldin SuchY entraliZed position when the deviee is ozglaliiped in pesition miel; 4il: is lilr medilieetien is shewiliinllilg.. 3f wher a cyllndricai abutfreiil; 21' is adapted @engage-'ari pertre inthe end ol?v the Wheel mille;I f l l the fessier in'vezitin-sliowii irri Fig. 3., a clamping manner erdis'ei 3a is used wliieii isV preferably'iri. the" rasierer a dise of a A`diari-'1eter' substantie y' equal te: the diameter of 'the tire ril-'nf .tiiefe dieper-reine nie lise or tile-f celifieetifigafiiislf eftlie fermefiriveritinof' Fier. 1. The tire engaging neliiliers, lef are -pivetallly eeririeetecidirectiyte:tifediseeitpivetfpeintsse. The disc e3" is prvlded wifi-i an .iiiteribriy screwtrlrieacl'edi lib 35 for tile ree'eptioiif of the clamping seievvfzl.- Y

In the formf inyen'erish'wii iii Figgil; i eiiiploy'tvverelafnpmg niexibrs'er: dises' 3e ar'idj 4e, dise- 3 e' is ienne@ witn screw-thieme@ hub gli fee engagement; Witn; the elaiiipiiig sjereiw 2 l, aridi 'alleelise;y fpie'rer'ablyseeuredtb tlfeabiisr mentl'iiempeifzaanl renner veritionf nie tire engaging members loi are-connected te the dlseas bymeansr i'pivt ans-e2; Eaellfthese arme is; plvetalele ater'if effet@ niej dise 3s" et a pivetipoiiite and alrite epee tje en dto tiietifre engaging? meliilier" Ifnl' aitap vet point 44;. Arfrlarigedysliestantially' midway the' leiigtli A ef: the connecting arm 42 isa @vet-65' and; connecting nl'isffpivetwitne; pvbafearr-i u y'tli'esiatieriary dise e0,- is" ani alirilaryelainpi eerineetigarirsee sulclstazi'tallyiV gid"` endl the use of the auxiliary clamping. ali-1n serves. to'tie tlieitwo dis'cstogethwifpivotalmanner and also serves to drawithel'fpivot Miinvlardly toward the Wheel when ther clamping member 36 is m'ov'ed ber of well known traction means. Y

outwardly to clamp the tire engaging members in position. 1

When the device is toV be applied to a tire, the hand wheel 22 is rotated to actuate the screw 2I in the proper direction so as to draw the clamping member I6 inwardly toward the abutment 25 and to a position shown in dotted lines in Fig. 1. In this position, the pivot points I4V uniting the tire engaging members with the connecting arms I5 will be moved outwardlyxin radial direction away from the center of the Etire, thereby lengthening the distance between pivot points I4. The lengths of the pivot arms I I and tire arms I2 of the tire`` engaging members are so proportioned thai-, when the pivots I4 are in the dotted linepositions ot 4 the scope of the appended claims, and I do not, therefore, wish to be limited to the exact embodiment herein shown and described.

What is claimed is:

l. The combination with an automobile Wheel and a tire carried thereby, of Van anti-skid device,

' comprising a plurality of radially movable tire- Fig. 1, these members may be Amoved around the pivots I 4 from the positions shown bythe dotV and dash lines to the position shown by' the engaging members, Van axially movable clamping member arranged near'the center of the wheel, connecting means for pivotallyunitingf'said tireengaging members to said clamping member, and expanding means arranged between said clamping member and the wheel, whereby the clamping member may be forced outwardly away from the wheel to draw said tire-engaging membersk into clamping engagement with the tire.

2. The combination with an automobile wheel and a tire'carried thereby, of an anti-skid device,

dotted lines. When thus applying thefdevice t l a tire, the abutment sleeve 25 is engaged with the; hub` 23 of the. wheel ory other centrally arranged portion thereofV and, the tire engaging members are engaged withthetire, one-at a time, in the manner just'above described. Ifnecessaryl to engage the members which are located near'k thel bottom ofthe tire and close to the pavement, it

is'only necessary to-roll the vehicle Vforwardly or backwardly over the adjacentengaged'members,

' whereupon the remaining members may beengaged with. the tire.A When allthe; members have been placed in theposition shown by the dotted lines'in` Fig. 1, the screw-2| is actuated to push the abutment means 25 tightly into contact with the engaged wheel part, and to force the clamping member I6 outwardly on the screw and away from the abutment 25, thereby drawing the pivot points I4 inwardly in radial manner and causing the tire engaging members to be clamped about the tire, as shown in fulilines in Fig. 1.i

It will be observed by reference to Fig. 1 that when the tire engaging membersIIl are in clamping engagement with rthe tire, they will be canted to the position shown by @the full lines in which position the corner or edge 5I joining the pivot arm II and the road-engaging portion I3 will, be projected above the tread rof the Ytire and will comprising a plurality of radiallyarranged tire members each formed at its Youter endwith a U-shaped arm forengagement;with-,thetirega clamping disc arranged at vthe center ofthe wheel', hinge means for connectingthe inner ends of said tire members to saiddisc, and expanding means' carried by said discand havingabutting engagement with said wheel, whereby the disc mayfbie forced away fromthewheel to bring'the tire engaging members in clamping relation with the A tire.

3. The combinationv with 'an` automobile; wheel and a tire carried thereby, of an anti-skid device, comprising a pluralityrof radially arranged tireengaging members, a clamping member arranged near the center of the wheel, means carried-by the clamping member forpivotally attaching said tire-engaging' members thereto, -and expanding means arranged between saidY clamping'memberY and the wheel, Awhereby Vthe clampingjmember members of U -shape formation; a' clamping V-discv arranged at the center ofi the wheel, hinge means Y for connecting the inner ends 0f Said members to present to the road a sharp road-engaging edge which will provide an -eiective traction surface l for engagement with theroadbed to prevent spinning of the wheel in dirt, sand 'or the like, or upon ice or snow. Whilelhave shown the corners or edges 5I as providing the traction surface for the tire engaging members, it is obvious that the road engaging portion I3v thereof may be suitably formed or provided with any one of` a num- Obviously, when it is desired'to remove myv device from the tire, it is only necessary to reverse the screw 2I and thereby move the clamping member I6 inwardlyl toward the abutment, whereupon the Yclamping members may be pivoted outwardly around the pivots I4 and away fromA their tire-engaging,y positions, f whereupon the deviceI may be completely removed and collapsed for storage. -It is obvious` that the screw-threads 1 the screw will increase the clamping action of the 3 y Clamping members. A Y i i Obviously, some modifications Hoi. the details l herein shown and described may be. made withi-k j out departing from thesp'irit i my` invention ,or

said disc, a screw carried by 'said disc and rotatable relatively therewith',4 abutmentmeans rcarried by the inner end of said sc rewV forv engagement with the wheel,v andrmeans vcarried at the outerY end of the screw for rotating the same, whereby the disc 'may be forced awayifromv thelabutmentmeans toY bring the tire engaging'membersV in clamping relation withgthe'tirer i c 5. The combination, with an automobilejwheelVA and a tire carried thereby, of an antiskid device, comprising a pluralityof radiallyarranged ,tire-V engaging members, `Vtwo spaced clampingdiscs arranged at thecenter ofthe wheel, an abutmentv carried rby one Adisc and engageabl'eawith -saidwheel, a clampingV screw; in screw-threaded jenA 6. An anti-,skid device, comprising `a plural-ity of U-shapedtire-engaging members', a Ycentrallyfar.:

ranged clamping member, ,fmeansffor pivotally attaching said tire-engaging members' Y to':.said clampingmember, an abutment member,- and ex-` pending means carried by-sa1d-c1ampingmember and engageable with said abutment member, whereby said clamping member may be moved axially toward and away from said abutment member to move said tire-engaging members radially to and from tire-engaging positions.

7. An anti-skid device, comprising a plurality of U-shaped tire-engaging members, a centrally arranged clamping member, radially arranged means for pivotally attaching said tire-engaging members to said clamping member, an abutment member, and screw means carried by said clamping means and engageable with said abutment member, whereby said clamping member may be moved axially toward and away from said abutment member to move said tire-engaging members radially to and from tire-engaging positions.

8. An anti-skid device, comprising a plurality of U-shaped tire-engaging members, a centrally arranged clamping member, radially arranged means for pivotally attaching said tire-engaging members to said clamping member, an abutment member, screw means carried by said Clamping means and engageable with said abutment member, and swivel means connecting said screw to said abutment means, whereby said vclamping member may be moved axially toward and away from said abutment member to move said tire engaging members radially to and from tire-fenu gaging positions.

9. An anti-skid device, comprising a plurality of U-shaped tire engaging members, two spaced Acentrally arranged clamping discs, an abutment carried by one of said discs, a clamping screw carried by the other dise and having screwn threaded engagement therewith, a swivel carried at the inner end of said screw and rotatably attached to the first mentioned disc in substantially axially rigid manner, a pivot arm connecting the drst mentioned disc to said tire-engaging members, and a pvot arm connecting each connecting arm to said other disc.

HARRY J. EISENHAUER,

REFERENCES CITED UNITED STATES PATENTS Name Date Willis June 17, 1919 Number 

